Paper Title:
Finite Element Fracture Mechanics Study of Pre-Northridge Connections
  Abstract

The objective was to quantify the variation of stress intensity factor to weld root flaw sizes in steel frame connections. Finite-element analyses were used to study fracture toughness in welded beam-column connections. Investigations of fracture behavior mainly focused on the standard pre-Northridge connection geometry. Finite element analysis was performed using the ANSYS computer program. Stress intensity factor was calculated through a J-integral approach. Results show that stress intensity factor is not uniform and is largest in the middle of beam flange. Stress intensity factor increases nearly linear with the increase of flaw size. Backing bars have little effect on weld fractures.

  Info
Periodical
Key Engineering Materials (Volumes 324-325)
Edited by
M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz
Pages
1007-1010
DOI
10.4028/www.scientific.net/KEM.324-325.1007
Citation
H. B. Liu, C. H. Zhai, Y. S. Shao, L. L. Xie, "Finite Element Fracture Mechanics Study of Pre-Northridge Connections ", Key Engineering Materials, Vols. 324-325, pp. 1007-1010, 2006
Online since
November 2006
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Price
$32.00
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